// Copyright (c) 2019 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package options

import (
	"testing"

	"github.com/influxdata/influxdb/pkg/testing/assert"
)

func TestDefaultQueryEngineParse(t *testing.T) {
	tests := []struct {
		name     string
		input    string
		expected QueryEngine
	}{
		{
			name:     "given empty sets to prometheus",
			input:    "",
			expected: PrometheusEngine,
		},
		{
			name:     "given random sets to prometheus",
			input:    "random",
			expected: PrometheusEngine,
		},
		{
			name:     "given prometheus sets to prometheus",
			input:    "prometheus",
			expected: PrometheusEngine,
		},
		{
			name:     "given m3query sets to m3query",
			input:    "m3query",
			expected: M3QueryEngine,
		},
		{
			name:     "given camelcase M3Query sets to m3query",
			input:    "M3Query",
			expected: M3QueryEngine,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			assert.Equal(t, tt.expected, getDefaultQueryEngine(tt.input))
		})
	}
}
